JPH09509244A - Cleaning system and associated apparatus for cleaning the interior of a fluid condensate - Google Patents

Abstract

(57) [Summary] A cleaning system for cleaning the inside of the fluid condensate pipe (14). The cleaning system includes a plurality of balls (26) entrained by the fluid flowing through the system, a separator (28) for separating the balls (26) from the fluid downstream of the pipe (14), and a separator. A pressure accumulator (60) for pressurizing the ball downstream of (28), a reservoir (62) for storing the volume of the jet fluid, and a number of balls (26) with which the tube (14) is associated. ), A compressor (60) selectively providing a supply of compressed air to a storage device (62) such that a portion of the volume of the injected fluid passes through the pressure accumulator device (60). .

Description

Description: A cleaning system and associated apparatus for cleaning the interior of a fluid condensate pipe. FIELD AND BACKGROUND OF THE INVENTION The present invention relates to a system for cleaning the interior of tubes in condensers and other common heat exchange types using balls. The present invention also relates to a separation device for separating the balls from the fluid flow associated with the balls mixed in such a system. The invention also relates to an apparatus including a compressor for injecting a quantity of fluid into a fluid condensate system. Systems for cleaning the interior of a fluid condensate tube with balls to avoid deposits of coatings and other contaminants within the tube are known to those skilled in the art. Such systems generally include a separation device and a ball recirculation device. A separator is located downstream of the fluid condensate pipe and between the ball recirculator and the ball from the fluid stream circulating in the system for distribution to the ball recirculator after each ball passes through the tube. Used to separate the. A ball recirculation device is then disposed between the separating device for containing the ball and the upstream side of the fluid condensate pipe and ejects the ball through the pipe by injecting the ball with a positive fluid pressure upstream of the pipe. Used for recycling. Conventional cleaning systems are known to suffer from numerous obstacles. First, it is well known that separation devices that do not facilitate the delivery of balls to the ball recirculation device impair the overall efficiency of the cleaning system. Second, ball recirculation devices that use continuously driven pumps for ball recirculation, such as U.S. Pat. No. 3,882,931 to Kumagai and 4,234,993 to Kintner. Not only expensive, but also subject to considerable downtime for maintenance or repair purposes. On the other hand, a ball recirculation device that uses a mechanically driven ejector to reverse eject the ball upstream of the tube, such as U.S. Pat. Due to the tendency to be sandwiched between the separation screen and the separation screen, it is very prone to malfunction and therefore also requires a considerable rest period for maintenance or repair purposes. Third, it is well known that a significant amount of condensate fluid, typically water, is discharged as wastewater. Thus, it would be highly advantageous to have a low cost and efficient cleaning system for cleaning the interior of a fluid condensate tube that has a widely recognized need and that overcomes the above mentioned disadvantages. Summary of the invention It is a primary object of the present invention to provide a low cost, simple and efficient cleaning system and related apparatus for cleaning the interior of a fluid condensate pipe. Therefore, according to a first aspect of the present invention, a cleaning system comprises: (a) a plurality of balls entrained by a fluid flowing through the system; (b) separating the balls from the fluid downstream of the tube. A separating device, (c) a pressure accumulating device for pressurizing the ball downstream of the separating device, and (d) a storage device for storing a large amount of jet fluid, the storage device being connected to the pressure accumulating device, The device is connected to a downstream portion of the pipe, and (e) a portion of the large volume of jet fluid, i.e., of the jet fluid passing through the accumulator to jet some balls with it upstream of the pipe. A cleaning system for cleaning the interior of a fluid condensate pipe, which includes a compressor for selectively providing a supply of compressed air to a storage device for injecting a portion of the pressure storage device upstream of the pipe toward the portion. Will be provided. According to another feature of the invention, the accumulator and the reservoir are assembled in a single housing. According to yet another feature of the invention, the housing includes a sieve and a funnel having a lower depending tube. According to yet another aspect of the invention, the pressure accumulator and the reservoir are arranged as two separate hermetic housings. According to yet another aspect of the invention, the storage device is at least partially filled with fluid flowing from the pressure accumulator. According to yet another aspect of the invention, a pressure reducing device for reducing the pressure within the pressure accumulator is further included. According to yet another feature of the invention, the pressure reducing device is a release valve. According to yet another aspect of the invention, the pressure reducing device is a pump. According to yet another aspect of the invention, the storage device further includes detection means for detecting the liquid level of the bulk fluid. According to yet another aspect of the invention, a timer for operating the system is further included. According to the second aspect of the present invention, (a) an inlet fluidly joined to the downstream side of the pipe, and a ball outlet connected to a ball recirculation device for recirculating a plurality of balls to the upstream side of the pipe. A conduit having a fluid outlet connected to the upstream side of the pipe, and (b) an inlet in the conduit for trapping a plurality of balls as the fluid continuously flows from the inlet toward the fluid outlet. A separating device for separating a plurality of balls circulating in a fluid condensate pipe, the separating device including a substantially cylindrical sieve extending substantially in the longitudinal direction between the ball outlet and the ball outlet. It is provided that the separation occurs downstream of the tube that it has. According to another feature of the invention, the cross-sectional area of the inlet is approximately equal to the cross-sectional area of the outlet header neck of the tube. According to another feature of the invention, the cross-sectional area of the sieve is approximately equal to the cross-sectional area of the outlet header neck of the tube. According to yet another feature of the invention, the total open area of the sieve is at least substantially 5 times its cross-sectional area. According to yet another feature of the invention, the total open area of the sieve is at least substantially five times the cross-sectional area of the outlet header neck of the tube. According to yet another feature of the invention, the ball outlet is substantially centered on the sieve. According to yet another feature of the invention, further includes means for reducing turbulence of the fluid flow in the vicinity of the fluid outlet. According to yet another feature of the invention, further includes means for reducing turbulence of the fluid flow in the vicinity of the ball exit. According to yet another feature of the invention, further includes means for driving the plurality of balls toward the ball exit. According to yet another feature of the invention, further includes means for compressing movement of the plurality of balls to reduce deviation of the plurality of balls from the axis of the ball exit. According to yet another feature of the invention, the sieve includes a non-penetrating portion. According to yet another feature of the invention, the sieve converges from the inlet toward the ball outlet. According to yet another feature of the invention, the screen includes a body portion with a screen. According to yet another feature of the invention, further includes an insert extending from the ball outlet toward the inlet. According to yet another feature of the invention, further comprising a second separation device in parallel with the first separation device, the second separation device comprising a conduit having an inlet fluidly connected downstream of the tube; It includes a ball outlet connected to the inlet of the ball recirculation device, a fluid outlet connected to the outlet fluid line, and a generally cylindrical sieve extending substantially between the inlet and the ball outlet. According to yet another feature of the invention, the inlet of the second separator is substantially opposite the inlet of the first separator. According to yet another feature of the invention, further includes first and second valves deployed at the first and second fluid outlets, respectively. According to a third aspect of the invention, (a) a plurality of balls entrained by the fluid flowing through the system, (b) a separating device for separating some balls from the fluid downstream of the pipe, c) a pressure accumulator to pressurize some balls downstream of the separator, (d) a venturi device connected to the accumulator upstream of the pipe to draw the balls upstream of the pipe, and (e) substantially A cleaning system for cleaning the interior of a fluid condensate tube is provided that includes a valve device for selectively splitting all fluid to flow through a venturi device. According to another characteristic of the invention, the pressure accumulator comprises a first operating position for capturing and pressurizing the ball and a second actuating position for ejecting the ball when the valve device divides the fluid through the venturi device. It has a rotatable sieve for setting the operating position of. According to a fourth aspect of the invention, (a) a plurality of balls entrained by the fluid circulating in the system, (b) a separating device for separating the balls from the fluid downstream of the pipe, (c) a separating device. A pressure accumulator for accumulating the balls downstream of the device, (d) a pump device connected to the accumulator upstream of the pipe for drawing the balls upstream of the pump, and (e) between the pump device and the accumulator. A cleaning system for cleaning the interior of a fluid condensate pipe is provided that includes a valve device for selectively communicating with. According to another characteristic of the invention, the pressure accumulator comprises a first operating position for capturing and pressurizing the ball and a first operating position for ejecting the ball when the valve device is in communication between the pump device and the pressure accumulator. It has a rotatable sieve for setting two operating positions. According to a fifth aspect of the present invention, (a) a compressor for selectively providing a supply of compressed gas, (b) (i) selectively for a water source of fluid to contain a large amount of fluid. A fluid inlet that is fluidly connected, (ii) a fluid outlet that is selectively fluidly connected to a fluid condensate system to distribute a predetermined amount of a large amount of fluid, and (iii) increasing the predominant pressure in the tank. From a source of fluid, including an air inlet that is fluidly connected to the compressor to expel a predetermined amount of fluid, (iv) a tank that includes a pressure relief valve that selectively reduces the predominant pressure in the tank An apparatus is provided for injecting a volume of contained fluid into a fluid condensate system. Brief description of the drawings The present invention is illustrated herein by way of example only with reference to the accompanying drawings. Here, FIG. 1a is for cleaning a fluid condensate constructed and operative in accordance with the present invention, in which a ball of the system is pressurized in a ball recirculation device upstream of the fluid condensate and ready for injection. 1 is a schematic view of a preferred embodiment of a cleaning system for FIG. 1b is a schematic diagram of the cleaning system of FIG. 1a in which the balls are dispersed in a fluid condensate tube before being trapped in the separation device of the cleaning system. FIG. 1c is a schematic diagram of the cleaning system of FIG. 1a in which the balls are pressurized in a separation device ready for delivery to the ball recirculation device of the cleaning system. 2 is a schematic diagram of the cleaning system of FIG. 1 modified to store all the cooling fluid used to entrain the balls from the separator to the ball recirculator. 3a-3g are schematic illustrations of a separation device of the cleaning system shown in FIG. 1 including modifications and variations to facilitate removal of the balls therefrom. FIG. 4 is a schematic diagram of a novel separation device constructed and operative in accordance with the teachings of the present invention and including a set of parallel separation devices. Figures 5a and 5b are schematic illustrations of a second embodiment of a cleaning system for cleaning a fluid condensate in accordance with the teachings of the present invention, the system of which is shown in Figure 5a prior to operation of its ball recirculation device. Some time after the operation of the ball recirculation device is shown, it is shown in FIG. 6a and 6b are schematic diagrams of a third embodiment of a cleaning system for cleaning a fluid condensate in accordance with the teachings of the present invention, wherein the system is shown in FIG. 6a prior to operation of its ball recirculation device. Some time after operation of the ball recirculation device is shown and is shown in Figure 6b. 7a and 7b are schematic views of a preferred embodiment of an apparatus for injecting a large amount of liquid from a water source of liquid into a liquid condensing system before and after the injection of a large amount of liquid. Description of the preferred embodiment The present invention is a ball-based cleaning system and related apparatus for cleaning fluid condensate tubes in condensers and other types of heat exchange. The principles and operation of a cleaning system and related apparatus according to the present invention may be better understood with reference to the drawings and accompanying descriptions. Referring now to the drawings, FIGS. 1a-1C are schematic illustrations of a cleaning system, generally designated at 10, constructed and operative in accordance with the teachings of the present invention, to condense a condenser 12 during different operations. To wash. The condenser 12 includes a fluid condensate pipe 14, which allows a cooling liquid, such as water, to pass therethrough to condense a fluid, such as a stream of water or a refrigerant gas, and pass through a gap between the condensate pipes 14. The cooling fluid is located on the upstream side of the condenser 12 and connected to the inlet header 16 of the condenser 12, the condensate pipe 14, and the condensate on the downstream side of the condenser 12. Pumped into a closed circuit including an outlet conduit 24 connected to an outlet header 18 of the vessel 12. Generally speaking, the cleaning system 10 comprises three elements, a ball 26 for forcibly circulating in the condensate tube 14 to clean the same when bacteria and dirt are produced, and generally 28. Includes an indicated separation device and a ball recirculation device indicated generally at 30. The separation device 28 is arranged between the condenser 12 and the ball recirculation device 30. Separator 28 is used to separate balls 26 from the flow of fluid circulation in system 10 after each ball 26 has passed through condensate pipe 14. Separation device 28 conveys balls 26 to a ball recirculation device 30 via conduit 32. The ball recirculation device 30 is disposed between the separating device 28 for receiving the balls 26 therefrom and the upstream side of the condenser 12. Ball recirculation device 30 is used to inject balls 26 upstream of condenser 12 via conduit 34. The conduits 32 and 34 are always provided with one-way closure valves 36 and 38, respectively. The one-way valve 36 is opened when the balls 26 are being conveyed from the separator 28 to the ball recirculator 30 while the one-way valve 38 is used when the balls 26 are condensed by the ball recirculator 30. 12 is opened while being injected upstream. In addition, conduits 30 and 34 are provided with normally open valves 40 and 42, which are regularly closed for the purpose of maintaining and repairing ball recirculation device 30. The separator 28 is for carrying the balls 26 to the ball recirculation device 30 via an inlet 46 connected downstream of the condenser 12, a fluid outlet 48 connected to an outlet conduit 24, and a conduit 32. A bypass tube 44 having a ball outlet 50. The outlet conduit 24 comprises a valve 52, the inlet 46 comprises a valve 54 and the fluid outlet 48 comprises a valve 56 to control the flow of fluid through the separator 28. Characteristically, valve 52 is closed and valves 54 and 56 are opened so that fluid flow downstream of condenser 12 passes through separator 28 and not directly through outlet conduit 24. Periodically, valve 52 is opened and valves 54 and 56 are closed to interrupt the operation of separator 28 for cleaning and other maintenance purposes. Separation device 28 is also generally cylindrical in shape extending substantially longitudinally within bypass tube 44 from inlet 46 to ball outlet 50 such that balls 26 are filled within the volume substantially enclosed therebetween. Includes a sieve 58. As fluid flows from the downstream side of the condenser 12 through the bypass pipe 44 and into the outlet conduit 24, within the range of the sieve 58, the balls 26 move in an elliptical shape indicated by A at approximately low speed. The features of the design, preferably embodied in the separating device 28, which achieve the complete removal of the balls 26 from it during transport to the ball recirculation device 30, are described herein. Other refinements of the separation device 28 that draw out an environment that aids in the complete removal of the balls 26 from the sieve 58 are described below with reference to Figures 3a-3g. First, the cross-sectional areas of the outlet header neck 18a, the inlet 46 and the sieve 58 of the condensate pipe 14 are substantially the same, so that generally from the condenser 12 through the separator 28 to the outlet conduit 24. A smooth and laminar fluid flow is guaranteed. Second, the pressure differential across the wall of the sieve 58 should be as close to zero as possible so that the ball 26 is not forced through its movement within the volume of the sieve 58 against the wall of the sieve 58 and is free. Guarantee that it will circulate in it. This pressure differential is best achieved by providing a sieve 58 having a total open area of at least about 5 times its cross-sectional area. However, the total open area of the sieve 58 is typically the outer header neck 18a of the condensate pipe 14, even though the outlet header neck 18a of the condensate pipe 14, the inlet 46 and the sieve 58 are not of the same cross-sectional area. Should be at least approximately 5 times. It should be noted that the total open area of the sieve is defined as its total penetration area. Third, the ball outlet 50 is located in the center of the sieve 58 to help create a strong vortex when the predominant pressure in the ball conduit 32 drops below the prevailing pressure in the outlet conduit 24. Is preferred, which ensures complete removal of the balls 26 from the separating device 28. Generally speaking, the ball recirculation device 30 includes four elements. The first is a trap 60 for pressurizing the ball 26 ready for injection into the inlet conduit 22. The trap 60 is then connected to a conduit 32 for receiving the balls from the separator 28 and a conduit 34 for the injection of the balls 26 upstream of the condenser 12. The trap 60 has sufficient storage capacity to contain all the balls 26 in circulation. The second is an airtight tank 62 for storing a large quantity of jetted liquid, which is arranged via a trap 60 for entraining the balls 26 stored therein in the upstream part of the pipe 14. The tank 62 is filled by outflow from the trap 60 or from a separate source of fluid water (not shown) and has sufficient storage capacity to inject all balls stored in the trap 60 into the main stream fluid stream. It is preferable to have. Thirdly, a compressor for providing a supply of compressed air through an air pipe 66 fitted with a valve 68 in order to increase the prevailing pressure in the tank 62, which causes a large amount of jetted fluid to drain. 64. And fourth is a pressure relief device 70 for reducing the pressure in the tank 62 to activate the cleaning system 10 for subsequent recirculation of the balls 26. The pressure relief device 70 is preferably a valve or pump. Typically, pressure relief valve 70 vents to drain 71. The compressor 64, valve 68 and pressure relief valve 70 are preferably operated by a timer (not shown) according to a preset schedule, or can be operated manually whenever it is desired to clean the condenser 12. Is good. In the preferred embodiment of the present invention, the trap 60 and tank 62 are assembled in a single housing, generally indicated at 72, and have a day 74 that allows passage of both the insertion and removal of the ball 26. It is preferable. The trap 60 includes a sieve 76 to separate the holes 26 from the cooling fluid exiting the conduit 32 through the port 74 and storing them ready for recirculation. The tank 62 is provided with a trap basin 78 for trapping the cooling fluid flowing out from the sieve 76, and a pipe 80 provided downward from the trap. In addition, the housing 72 may include an observation glass 82 to allow observation of the buildup and ejection of the balls 26, and a drain valve 84 for cleaning and other maintenance purposes. The trap 60 and tank 62 can also be provided as separate items. Referring now to FIG. 2, in another aspect of the invention, most, but not all, of the cooling fluid used by the ball recirculation device 30 to entrain the balls 26 therein, A part is changed so as to be discharged to the drain pipe 71 as waste water. In this case, the storage capacity of the tank 62 can be increased to have sufficient storage capacity for all the cooling fluid used to entrain the ball 26 in the trap 60. Alternatively, it may be better to have a second tank 86 provided by special equipment, ie to receive the overflow from the tank 62 through the connecting pipe 88. In this case, the compressor 64 supplies compression via an air line 90 to which a valve 92 is attached and a pressure relief valve 94 connected to a tank 86. Ball recirculator 30 preferably includes sensors 96a and 96b used to determine the maximum and minimum amounts of cooling fluid within ball recirculator 30. The operating cycle of the cleaning system 10 will now be described with reference to Figures 1a-1c. As can be seen, FIG. 1 a shows the balls 26 just before they accumulate in the trap 60 and inject them upstream of the tube 14. FIG. 1b shows that the balls 26 are dispersed through the condenser 12 before being separated from the main fluid stream by the separator 28, and FIG. 1C shows that the balls 26 are accumulated in the separator 28 and Before being distributed to the ball recirculation device 30. Injection of the ball 26 into the trap 60 upstream of the condenser 12 causes compressed air to open under positive fluid pressure by opening the valve 68, closing the valve 70, and the air supply pipe 66 to the tank 62. This is achieved by the operation of the feeding compressor 64. The prevailing pressure in the tank 62 is adjusted so that a large volume of jet fluid therein is operated through the tube 80 and the ball and wrap 60, thereby entraining the ball 26. Upon discharge of the balls 26 from the ball recirculation device 30, the prevailing pressure in the tank 62 is the closing pressure of the cooling fluid in the condenser 12 caused by closing the one-way valve 36 and the opening of the one-way valve 38. Greater than the upstream pressure of the cooling fluid in the condenser 12 caused by. After injection of the ball 26, the valve 68 is closed and the pressure relief valve 70 is opened, the pressure difference between the cooling fluid flowing through the condenser 12 and the prevailing pressure in the tank 62 caused by closing the one-way valve 38. Is increased. Once injected into the upstream of condenser 12, the balls 26 are forced to circulate through condenser 12 in a generally clockwise direction along the main flow of cooling fluid in cleaning system 10. The balls 26 pass through the condensate pipe 14 and are collected in the sieve 58 of the separator 28. The balls 26 move in an approximately elliptical shape indicated by A at a slow rate within the volume of the sieve 58 as the cooling fluid flows from the downstream side of the condenser 12 through the bypass conduit 44 to the outlet conduit 24. After a preset amount of time, characteristically enough, but not all, of the balls 26 to become trapped in the sieve 58, and the ball recirculation device 30 ensures that the prevailing pressure in the tank 62 is It operates to drop sharply below the prevailing pressure in the outlet conduit 24. The abrupt pressure drop causes most of the cooling fluid to pass through the separator 28 so that it is discharged along the conduit 32 through the ball outlet 50 instead of through the fluid outlet 48 and along the outlet conduit 24. Causes a sudden change relative to the flow. Thus, in contrast to the gentle movement of the ball 26 in the sieve 58, the ball 26 is removed therefrom by a strong vortex of cooling fluid that entrains the ball 26 through the ball outlet 50 toward the ball recirculation device 30. . After removal of the balls 26 from the sieve 58, the pressure in the tank 62 is adjusted so that the cooling fluid flowing through the separator 28 returns and flows through the fluid outlet 48 into the outlet conduit 24. The balls 26 are accumulated by the sieve 76 of the trap 60 for storage in the tank 62 while the entrained cooling fluid is drained. If necessary, tank 62 is filled with cooling fluid from a separate water source to ensure that a sufficient amount of jet fluid is stored to inject all balls stored in trap 60 into inlet conduit 22. It is better to guarantee. It is preferable that the above cycle is periodically performed due to the amount of coating and other substances deposited inside the condensate pipe 14. Referring now to Figures 3a-3g, another modification for the implementation of the separator 28 to draw out an environment that aids in the complete removal of the balls 26 from the sieve 58 is illustrated. 3a-3c show an improvement of the separating device 28 in which the fluid outlet 48 is arranged towards the ball outlet 50, whereas in FIGS. 3d-3g the fluid outlet 48 is arranged towards the inlet 46. 9 shows an improvement of the separating device 28. Generally, an arrangement in which the fluid outlet 48 is arranged toward the ball outlet 50 is preferred. This is because the flow of fluid through the fluid outlet 48 tends to drive the balls 26 toward the ball outlet 50, which facilitates their removal. However, in some installations space requirements are not acceptable for this arrangement, so that the fluid outlet 48 is arranged towards the inlet 46. Generally speaking, improvements are designed to achieve one or more of the following effects. The first is to reduce turbulence, especially turbulence in the vicinity of the ball outlet 50 as a result of fluid flow through the fluid outlet 48. Second, the suction of the vortices created by the reduced pressure in the ball conduit 32 drives the ball 26 toward the ball outlet 50 so as to increase the suction force of the ball 26. Third, the suction of the vortex caused by the reduction in pressure in the ball conduit 32 is that the vortex is substantially directed at the ball 26 so as to increase its suction. Finally, the movement of the ball 26 is constrained to reduce the biasing movement of the ball 26 from the axis of the ball outlet 50, thereby increasing the suction force of the vortex created by the reduced pressure in the ball conduit 32. 3a-3c, the sieve 58 causes turbulence in the vicinity of the ball outlet 50 by providing a non-penetrating portion 98 towards the end of the sieve 58 located towards the ball outlet 50. Should be adapted to reduce The non-penetrating portion 98 ranges from a substantially semi-penetrating shape (Fig. 3a) to a fully cylindrical shape (Fig. 3b). Alternatively, rather than being fitted to the sieve 58, the separator 28 includes a funnel-shaped insert 100 (see FIG. 3c) having a narrow mouth towards the ball outlet 50 and a wide mouth towards the inlet 46. Better. The sieve 58 and insert 100 form a substantially continuous wall, maintaining a closed environment for the ball 26 between the inlet 46 and the ball outlet 50. The insert 100 is designed to constrain the elliptical movement of the ball 26 to emphasize that vortex suction facilitates removal of the ball 26 via the ball outlet 50. 3d and 3e, the sieve 58 includes a non-penetrating portion 102 provided to reduce turbulence in the vicinity of the fluid outlet 48, thereby minimizing the impact of ball 26 breaking. Better. Again, the separator 28 extends from the ball outlet 50 toward the inlet 46 to direct the suction of the vortices created by the pressure reduction in the conduit 32 so that the balls 26 are more easily removed from the separator 28. It is better that the insert 104 is provided. Referring now to FIGS. 3f and 3g, improvements to the sieve 58 include a convergent sieve 106 or a sieve 108 having a squeezed barrel portion. The sieve 106 suppresses the biasing movement of the ball 26 towards the ball outlet 50 such that the suction force of the vortex created by the pressure drop in the conduit 32 increases the suction of the ball 26. In contrast, the sieve 108 maintains the balls 26 near the ball outlet 50 once they have passed through the throttled barrel portion 110 since the vortices readily remove them from the separator 28. Referring now to FIG. 4, the separation device, generally designated 112, is shown to include two sets of separation devices 112a and 112b. Separation devices 112a and 112b are structurally similar to separation device 28 and thus similar elements are similarly numbered. For reasons that will become apparent from the description below, the inlet 46a is disposed substantially opposite the inlet 46b, and the separation device 112 may further include valves 114a and 114b disposed at the fluid outlets 48a and 48b, respectively. preferable. The operation of separation device 112 is described herein. In normal operation, the valves 114a and 114b are opened so that the cooling fluid flowing through the condensate pipe 12 flows through the separators 112a and 112b to the outlet conduit 24 at a substantially similar rate. Thus, the balls 26 are directed to substantially the same amount on both separators 112a and 112b after they pass through the condensate pipe 14 following injection by the ball recirculation device 30. For clarity, ball 26 introduced in separator 112a is shown as ball 26a, while ball 26 introduced in separator 112b is shown as ball 26b. After the introduction of the ball 26, one of the valves 114a and 114b, for example the valve 114a, is temporarily closed, in which case it is prepared for removal of the ball 26a from the separating device 112a. The shut-off valve 114a causes the fluid originally flowing in the separator 112a to turn, thus causing all the fluid flowing in the condensate pipe 12 to both flow through the separator 112b and sift the ball 26a 58. Substantially stationary within the volume of. The situation of the balls 26a is again due to the strong vortices created when fluid flows through the separator 112a due to the operation of the ball recirculation device 30 which reduces the prevailing pressure in the ball conduit 32a over the prevailing pressure at the inlet 46a. Facilitate the removal of. After removal of ball 26a, valve 114a is opened and valve 114b is temporarily closed, thereby allowing removal of ball 26b from separator 112b. After the ball 26b is removed, the separating device 112 returns and the valve 114b is reopened for normal operation. 5a and 5b show a second embodiment of the cleaning system, indicated generally at 116, which leads the ball 26 to the inlet conduit 22 at a point upstream of the condensate pipe 14 and connected to the trap 60 via conduit 34. And a venturi device generally designated 118. Venturi device 118 includes bypass conduits 120 disposed between inlet and outlet pipes 122 and 124, respectively, to constantly open inlet conduit 22 so that the fluid flow through constriction 126 that guides ball 26 from trap 60 is high velocity. The closure of valve 128 has a constriction 126 such that it causes a diversion of fluid through bypass conduit 120. It should be noted that fluid still flows through the venturi device 118, even when the valve 128 is open, but without significant pressure drop at the inlet header 16. This is because the diameter of the inlet conduit 22 has a relatively large diameter compared to that of the portion 126. The trap 60 is under the control of an actuator 132 for setting a first operating position for capturing and pressurizing the ball 26 and a second operating position for closing the valve 128 to eject the ball 26. It is preferable to have a driven rotary sieve 130. 6a and 6b show a third embodiment of the cleaning system, indicated generally at 134, in which the trap 60 is connected upstream of the pump 20 to the inlet conduit 22 and the valve 136 provided in the conduit 34 is opened. When it does, it leads the ball 26 to it. The trap 60 is under the control of the actuator 132 to set a first operating position for catching and pressurizing the ball 26 and a second operating position for opening the valve 136 to eject the ball 26. It is preferable to include a rotary sieve 130 driven by. Turning now to FIGS. 7 a and 7 b, constructed and operated in accordance with the teachings of the present invention to eject a large volume of liquid received from a source of liquid 202 into a liquid condensate system 204, generally at 200. A preferred embodiment of the shown liquid ejection device is shown. Liquid ejector 200 is a modified implementation of ball recirculation device 30, and liquid received from a water source of liquid 202 is in liquid condensing system 204 that is dependent on the particular implementation of liquid ejector 200. It will be appreciated that the flowing liquids are either homogeneous or heterogeneous. The apparatus 200 includes a tank 206 for storing a large amount of liquid received from a water source 202, and a compressor for injecting some or all of the volume in the tank 206 into the system 204, as will be apparent from the description below. 208 and generally. The tank 206 preferably comprises an inlet 210 passing through the introduced liquid from the water source 202 along the inner line 212 and an outlet 214 discharging the liquid to the system 204 along the outer line 216. Hydraulic one-way valves 218 and 220 are provided with inner and outer lines 212 and 216, respectively, to ensure system 204 has liquid flow from water source 202. Alternatively, the one-way valves 218 and 220 may be solenoid operated. The compressor 208 provides a supply of compressed fluid via an air line 222 connected to an air inlet 224 unit tank 206, which is typically compressed air. To regulate the prevailing pressure in tank 206, by allowing compressed air to be provided from compressor 208 and by removing air from tank 206, air line 222 provides valve 226 and pressure relief valve 28. Is adapted to. The one-way valves 218, 220 and the pressure relief valve 228a are operated in a number of modes of operation by the periodic injection of liquid from the tank 206 into the system 204. Such modes are correspondingly included as directed by sensors 230a and 230b for detecting the liquid level in tank 206 or manual operation according to a preset schedule. The operating cycle of the device 200 will now be described with reference to Figures 7a and 7b. 7a shows the tank 206 in a substantially empty condition, and FIG. 7b shows the tank 206 filled with liquid before the liquid is injected into the system 204. Liquid passes from the water source 202 through the open one-way valve 218 along the inlet line 212 and accumulates in the tank 206. Typically, valve 226 is closed and pressure relief valve 228 is opened so that the prevailing pressure in tank 206 is atmospheric. The volume of liquid in tank 206 increases until the liquid level reaches sensor 230a as shown in Figure 7b. Sensor 230a transmits a signal by opening valve 226 and closing pressure relief valve 228. Thus, establishing a flow connected between tank 206 and compressor 208. The compressor 208 drives the amount of liquid to the system 204 along the outer pipe 216 through the outlet 214 while stopping the supply of liquid from the water source 202 when the prevailing pressure in the tank 206 is sufficient to close the valve 216. Compressed air is supplied to the tank 206 so as to do so. After the tank 206 has substantially gone through, the level of liquid therein reaches the sensor 230b as shown in Figure 7a. The pressure relief valve 224 opens and the valve 222 closes, causing the sensor 230b to be activated for the next injection of liquid by reducing the prevailing pressure in the tank 206.

────────────────────────────────────────────────── ─── Continuation of front page    (31) Priority claim number 08 / 258,888 (32) Priority date June 13, 1994 (33) Priority claiming countries United States (US) (81) Designated countries EP (AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LU, M C, NL, PT, SE), OA (BF, BJ, CF, CG , CI, CM, GA, GN, ML, MR, NE, SN, TD, TG), AP (KE, MW, SD, SZ), AM, AT, AU, BB, BG, BR, BY, CA, CH, C N, CZ, DE, DK, ES, FI, GB, GE, HU , JP, KE, KG, KP, KR, KZ, LK, LT, LU, LV, MD, MG, MN, MW, NL, NO, N Z, PL, PT, RO, RU, SD, SE, SI, SK , TJ, TT, UA, UZ, VN

Claims (1)

[Claims]   1. A cleaning system for cleaning the inside of a fluid condensate pipe, the cleaning system comprising: Mu is   (a) Multiple balls entrained by fluid flowing through the system   (b) Separation device for separating the balls from the fluid downstream of the pipe   (c) pressure accumulator for pressurizing the balls downstream of the separator   (d) A storage device for storing a large amount of jet fluid, wherein the storage device is Connected to a pressure accumulator, said storage device being connected to the downstream part of the pipe, And   (e) Part of the large volume of jet fluid, i.e. some balls A portion of the injection fluid that passes through the pressure accumulator for injection upstream of the pipe. Select the supply of compressed air to the storage device for injection from the pressure device towards the part. Compressor for selectively providing including.   2. The accumulator and the reservoir are assembled in a single housing. The system according to claim 1, which is provided.   3. The housing according to claim 2, wherein the housing includes a sieve and a funnel having a lower dependent tube. According system.   4. The pressure accumulator and the storage device include two separate airtight housings. The system according to claim 1, wherein the system is arranged.   5. The storage device is at least partially formed by the fluid flowing out from the pressure accumulator. The system according to claim 1, wherein:   6. A pressure reducing device for reducing the pressure in the pressure accumulating device is further included. The system according to item 1.   7. 7. The system according to claim 6, wherein the pressure reducing device is a release valve.   8. 7. The system according to claim 6, wherein the pressure reducing device is a pump.   9. A detection means for detecting the liquid level of a large amount of fluid is further provided in the storage device. A system according to claim 1 including. 10. The system according to claim 1, further comprising a timer for operating the system. . 11. It is a separation device for separating multiple balls circulating in the fluid condensate pipe. Therefore, separation occurs on the downstream side of a pipe having an upstream side and a downstream side. ,   (a) An inlet fluidly joined to the downstream side of the pipe and multiple balls recirculated to the upstream side of the pipe Ball outlet connected to the ball recirculation device to connect, and connected upstream of the pipe A conduit having a fluid outlet, and   (b) When the fluid continuously flows from the inlet toward the fluid outlet, a plurality of The length between the inlet and the ball outlet in the conduit for capturing the ball on it A substantially cylindrical sieve that extends substantially in the hand direction including. 12. 12. The cross-sectional area of the inlet is approximately equal to the cross-sectional area of the outlet header neck of the tube. Equipment by. 13. The cross-sectional area of the sieve is approximately equal to the cross-sectional area of the outlet header neck of the tube. Device according to 1. 14． The total open area of the sieve is at least substantially five times its cross-sectional area The device according to claim 11, wherein 15. The total open area of the sieve is at least the actual cross-sectional area of the outlet header neck of the pipe. Device according to claim 11, which is 5 times qualitatively. 16. 12. The ball outlet is located substantially in the center of the sieve. Equipment by. 17． Additional means for reducing turbulence of the fluid flow in the vicinity of the fluid outlet. A device according to claim 11 including. 18. A means for reducing turbulence of the fluid flow in the vicinity of the ball outlet. An apparatus according to claim 11 further comprising. 19. Additional means for driving the plurality of balls toward the ball exit A device according to claim 11 including. 20. The deviation of the balls from the axis of the ball outlet is reduced. 12. A means for restraining bias movement of the plurality of balls, further comprising: Equipment by. 21. The apparatus according to claim 11, wherein the sieve comprises a non-penetrating portion. 22. 12. The sieve converges from the entrance toward the ball exit. Equipment by. 23. The apparatus according to claim 11, wherein the sieve includes a squeezed barrel portion. 24. A contract further comprising an insert extending from the ball outlet toward the inlet. The apparatus according to claim 11. 25 further comprising a second separating device in parallel with said first separating device, said second separating device The separator includes a conduit having an inlet fluidly connected downstream of the tube and the ball recirculation. A ball outlet connected to the inlet of the ring device, a fluid outlet connected to the outlet fluid line, A substantially cylindrical sieve extending substantially between the inlet and the ball outlet Device according to claim 11. 26. The inlet of the second separator is substantially the same as the inlet of the first separator. 26. The device according to claim 25 facing each other. 27. First and second valves located at each of the first and second fluid outlets The device according to claim 25, further comprising: 28. A cleaning system for cleaning the inside of a fluid condensate pipe, the system comprising: ,   (a) Multiple balls entrained by fluid flowing through the system   (b) a separation device for separating some of the balls from the fluid downstream of the pipe   (c) accumulator for pressurizing some of the balls downstream of the separator.   (d) Connected to the pressure accumulator upstream of the pipe to draw the ball upstream of the pipe. Venturi device, and   (e) Selectively split substantially all fluid to flow through the Venturi device Valve device for including. 29. The pressure accumulator comprises a first operating position for capturing and pressurizing the ball and a valve. For ejecting balls as the device splits fluid through the venturi device 29. A rotatable sieve for setting the second operating position with the rotatable sieve. System. 30. A cleaning system for cleaning the inside of a fluid condensate pipe,   (a) Multiple balls entrained by fluid flowing through the system   (b) Separation device for separating the balls from the fluid downstream of the pipe   (c) Pressure accumulator for accumulating the balls downstream of the separating device   (d) the accumulator upstream of a tube for drawing the ball upstream of the pump A pump device connected to, and   (e) A valve device for selectively communicating between the pump device and the pressure accumulator including. 31. The pressure accumulator comprises a first operating position and a valve mount for capturing and pressurizing the ball. For ejecting balls when a device communicates between the pump device and the pressure accumulator 31. A rotatable sieve for setting a second operating position of the Listed system. 32. Inject a large amount of fluid contained in a fluid source into a fluid condensate system A device for:   (a) Compressor for selectively providing compressed gas supply   (b) (i) Fluid inlet that is selectively fluidly connected to the water source of the fluid to accommodate a large amount of fluid Mouth, (ii) selectively to the fluid condensate system to dispense a predetermined amount of the large volume of fluid A fluid outlet connected to a fluid, (iii) increasing the predominant pressure in the tank to An air inlet section fluidly connected to said compressor for discharging a predetermined quantity of a quantity of fluid, (iv) A tank that includes a pressure relief valve that selectively reduces the predominant pressure in the tank. including.